If you go back just 8 yrs a certain Italian charter company was code sharing on a route to Kiev using Italian cc & Ukranian A/C & FD.
No sooner was the gear up than the call bell would go with requests for flight-deck drinks. . . . & I mean " drinks". After a couple of refusals the guys just came back out and helped themselves to the bar, & no, it wasn't for consumption in the bar /hotel or at home afterwards, this was in-flight "refreshments" folks .This, I assure you ,is not urban myth, this is the way these guys operated. Then again, this company had an Italian Capt who was doing (and it was widely known ) the same, but hey , lets not get " Paranoid" & blue things up out of proportion.